SWB Quattro Project

[repo]

Dude, Your oil lines to and from the tank are too small.

[Jonnybravo]

As ever outstanding work, the car is going to be a beauty.

Out of interest will you run bias control on the pedal box as well as the rear adjuster I can see pictured ?

[G60Rallye]

Thought it was about time for a small update.

The oil lines are now all run through the car:



















I then moved onto building the turbo brace:







Finally the intercooler turned up, still waiting on the boost pipes then I can get on with the boost pipework.





Hopefully I will get all the pipe work finished off and get it away for welding this month then its just down to wiring and getting it fired up!

[JP]

Fuel lines inside the cabin is fine, its just some rule they are bringing into drag racing, or already have.

Fuel tanks and dry sump tanks will now need to be firewalled and depending on what your running the car in you may have to comply with those which can be quite difficult to sort out.

Cool that's good info as unfortunately our MK2 has fuel tank swirl pot and lines in the car and is going to be a nightmare cosmetically to sort

[Jonnybravo]

The fuel labs are different to the Aeromotive ones.

Here is one fitted to another car

[G60Rallye]

Hi Dave, my fuel pressure regulator doesn't have an exit on the bottom of it? Its not an aeromotive one so is set out differently.

As for the fuel sampling I did a bit of thinking on that one. I asked the guy I bought the fittings off and he said most people were putting them on the non pressure side and were getting away with it. I wont have any problem getting fuel out of that return line as its got to balance up what the lift pump pushes into the swirl pot.

Fuel lines inside the cabin are ok JP. I dont plan on going into the drag racing that seriously. They are PTFE lined so no horrible fumes come through them which you notice on some cars! All my tanks, pumps, filters etc are all behind the firewall, so I wont have any issues there.

[Jonnybravo]

Fuel lines inside the cabin is fine, its just some rule they are bringing into drag racing, or already have.

Fuel tanks and dry sump tanks will now need to be firewalled and depending on what your running the car in you may have to comply with those which can be quite difficult to sort out.

[JP]

Great update as always, only concern I would have is running fuel lines through the cabin. I know if you go into a proper drag racing series you are allowed no fuel in the cabin incase of fire and the scrutineers are real uptight about it. Obviously I don't know what the regs are like in sprinting and rally etc but is worth double checking if you haven't already.

[Dave Rowe]

Looking good as I do love the black fittings...

please dont take this the wrong way but I am very sorry to say but the fuel reg is not plumbed up right. The return line should exit on the bottom of the reg.

Also the fuel sample fitting needs to be fitted on the pressure side of the system, so either on the end of the reg that you have the -6 fitting fitted to know or near the high pressure pumps as it wont push the fuel out of the system where it is. See pic of my reg

Hope this helps and if you want to chat about it just give me a call.

[aelred]

The cooler the better

[G60Rallye]

I would imagine the fuel will heat up quite a lot when its just ticking over as it will keep on circulating back into the swirl pot. On full throttle perhaps less of an issue.

I dont see any issue having the fuel too cool?

[quattrostyle]

very nice, great attention to detail. The fuel cooler looks quite big, does it get that hot?

[Jeffer]

nice work Hamish. Looks great.

[G60Rallye]

Not bothered about peope posting anything one here as long as its constructive! Its great to get some insight about what to expect from the turbo!

So little update to keep things up to date. I have had half the fittings and hose delivered, which is to do all the fuel lines. The oil lines are to follow at the end of the month as they had to be ordered in. Everything is from Torques who sell on ebay. Got a superb deal on the bulk order and he has been super helpful if anybody else is looking for a supplier. The hose is all PTFE lined to stop the fuel vapours from getting out. The fittings are all swivel ones and in black as I think the blue and red looks slightly tacky!

So starting at the back of the car. Holley fuel pump lifts out of the ATL tank and this feeds the swirl pot through a pre filter. There are then twin bosch 044 10 bar fuel pumps pulling from there. They feed twin fuel filters and then into a Y piece. The swirl pot has a fuel sampling connection on the return to the tank. This means that at events the scrutineers can take a fuel sample by pushing on the dry break coupling.









From the boot the lines go through into the cabin using bulkhead fittings. The feed lines goes directly to the front bulkhead. The return goes through a cooler under the floor.









From inside the cabin it passes into the engine bay through more bulkhead fittings. Into the fuel rail, and then back around into the fuel pressure regulator. Excuse the mess, I haven't had a clean up since drilling all the holes!





So thats the fuel set up sorted apart from some tidying up and tieing down. I am aware some of the hoses need something wrapped around them to stop them wearing through other bits. Hopefully the fuel set up will be good for any power I need and shouldn't suffer from any surge.

I have picked up a couple of other bits recently, firstly a brand new clutch master cylinder, which had a HEL line made up for it when the brake lines were done:



Yesterday I also picked up a couple more 8" ronals, that gives me a couple of spares now. I think I will fit some drag racing tyres to them eventually.



So that brings everything upto date. The intercooler is due this coming week. That means I can get on with the boost pipes and get everything away for welding.

[URQguy]

Yes, the maps look promising, but the preliminary data out there is that the gtx series are not spooling faster than the regular gt. I was really looking forward to the release, but they have been somewhat disappointing thus far. So the 30r makes the same power as the 35r with the billet 11 blade wheel, but it also spools a lot like a 35r. So what is the point of that? Why not just have a 35r?

The gtx3071r is making 3076 power, but it spools a few hundred rpm later than the regular 30r... So why not use the 30r?

The beauty of the hta turbos are that they are spooling 500-600 rpm sooner than regular gt turbos, and them make just as much power, if not more. The added weight of the 11 blade seems to have make for a higher compressor area at the expense of rotating mass, aka spool.

Anywho, I'll be on the dyno this weekend with the hta35r. I'll update you. If you want me to do it via PM, let me know. I figure this information dumping of parts you have purchased are relevant, but if you want it kept off your thread, let me know via pm.